-55.64% is the change from 647 to 287
Calculation steps:
[( 287 - 647 ) ÷ 647] x 100 = -55.64%
Formula
Percentage change = [(287 - 647) / 647] x 100
Subtract the new number by the original number
287 - 647 = -360
-360 ÷ 647 = -0.5564142194744977
-0.5564142194744977 x 100 = -55.64%